8
6.
Grouting
7.
Grout compensates for unevenness in the foundation and distributes the
weight of the unit uniformly on the foundation. It also prevents lateral
shifting of the base plate and reduces vibration. Use a non shrinking grout.
Foundation bolts should be tightened evenly, but not too firmly. Grout the
unit as follows:
1. Build a strong form around the base plate to contain the grout.
2. Soak the foundation top thoroughly, and then remove surface water.
3. Pour grout. Tamp liberally while pouring in order to fill all cavities and
prevent air pockets. The space between the foundation and base plate
should be completely filled with grout. In order to prevent the base plate
from shifting, fill under the base plate at least four inches in from all four
edges. Wedges may be left in place.
4. After the grout has hardened (usually about 48 hours), thoroughly
tighten foundation bolts and check alignment.
5. Approximately 14 days after the grout has been poured or when it is
thoroughly dry, apply an oil base paint to exposed edges of the grout to
prevent air and moisture form coming in contact with the grout.
